A famous author called Vikram Sethi ( Siddharth Malhotra ) finds his wife dead on the night his book is going to be launched and calls the police . But when the police threaten to hold him responsible for his wife's murder he escapes from there . As he is escaping in his car it overturns , and later he is found with the dead body of a lawyer named Shekhar Sinha ( Samir Sharma ) in the apartment of a woman who has come in front of a police vehicle for help---none other than the lawyer's wife Maya Sinha ( Sonakshi Sinha ) .

The presence of the same person around two deaths perplexes the police and the case is given to be solved by police officer Dev ( Akshay Khanna ) . The big problem is that both Maya and Vikram give totally different accounts of how events unfolded . As their accounts unfold before us , every part of what one tells the police is juxtaposed against the account told by the other person . At first , the story told by Maya seems to be more credible than the story told by Vikram . But both are suspects . Dev has to bring all the resources of his brain to bear to try to crack the case . This involves threatening and cajoling the two suspects to tell their version of what happened and try to find the truth from their differing accounts . Soon the story told by Vikram too seems credible and the mystery is a hard nut to crack .

The three main actors do act well in their parts . Siddharth Malhotra does look innocent in his acting and Sonakshi oozes sex appeal with her lacy short cleavage baring clothes and the lover with whom she is having an extra marital affair adds his own spice to the proceedings . Akshay Khanna is the balding police officer who acts tough with his own policemen and also the suspects .

As one person is thought to be guilty and then the other , the twists and turns predictably come into the story . And they do keep you engaged . The twist in the end does give a surprise because of the manner in which the murderer has taken advantage of a coincidence ( ittefaq ) , though I was expecting some sort of final twist to the story .

Colours and photography are decent and background music is okay . But the proceedings were too serious and one dimensional and lacked zing which gives much needed entertainment . Maybe an item song or some exciting car chase scene or fight sequence would have given the much needed zing .